semáforo

Etymology
Borrowed from, from and.

Noun

 * 1) traffic light
 * 2) semaphore visual signalling system
 * 3)  semaphore token used to restrict and allow access to a shared resource
 * 1)  semaphore token used to restrict and allow access to a shared resource

Etymology
, from, and derived from.

Noun

 * 1) traffic light
 * 2) semaphore, flag semaphore